JPH01200511A - Insulation composition and electric power cable - Google Patents
Insulation composition and electric power cableInfo
- Publication number
- JPH01200511A JPH01200511A JP2441488A JP2441488A JPH01200511A JP H01200511 A JPH01200511 A JP H01200511A JP 2441488 A JP2441488 A JP 2441488A JP 2441488 A JP2441488 A JP 2441488A JP H01200511 A JPH01200511 A JP H01200511A
- Authority
- JP
- Japan
- Prior art keywords
- silane
- polyethylene
- insulation composition
- coupling agent
- organic peroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 238000009413 insulation Methods 0.000 title abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 17
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- 150000001451 organic peroxides Chemical group 0.000 claims abstract description 11
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 5
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000077 silane Inorganic materials 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract description 2
- 125000000962 organic group Chemical group 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 description 17
- 229920003020 cross-linked polyethylene Polymers 0.000 description 10
- 239000004703 cross-linked polyethylene Substances 0.000 description 10
- 240000005572 Syzygium cordatum Species 0.000 description 5
- 235000006650 Syzygium cordatum Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Organic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、架橋ポリエチレン絶縁組成物の改良およびこ
の組成物を絶縁体とした電カケープルに係り、特に水ト
リー発生の抑止と同時に組成物の厚肉化を可能にしたも
のに関する。Detailed Description of the Invention <Industrial Application Field> The present invention relates to an improvement of a crosslinked polyethylene insulation composition and an electric cable using this composition as an insulator. Concerning what made thickening possible.
〈従来の技術〉
現在、電カケープルにおいては、架橋ポリエチレン（Ｘ
ＬＰＥ）を絶縁体とするＸＬＰＥ絶縁電絶縁−カケが主
流となっている。<Conventional technology> Currently, cross-linked polyethylene (X
XLPE insulation (LPE) is the mainstream.
しかしながら、このＸＬＰＥ絶縁電絶縁−カケの弱点は
、同ケーブル特有の現象として、絶縁体中の水分と局部
的異常電界の存在によって、水トリーが発生して、ケー
ブルの絶縁性能を低下させるという問題がある。However, the weakness of this XLPE insulation chip is that water trees occur due to moisture in the insulator and the presence of local abnormal electric fields, which is a phenomenon unique to this cable, which deteriorates the insulation performance of the cable. There is.
この水トリーの発生、進展機構については、数多くのメ
カニズムが提案されているが、一般には、外部からＸＬ
ＰＥ絶縁体中に水が浸透し、この水が電界の作用によっ
て異物やボイド等の局部的な高電界部分で連続的に凝縮
し、この凝縮水がＸＬＰＥ絶縁体中に放出され、水トリ
ーが進展すると考えられている。Many mechanisms have been proposed for the generation and development of this water tree, but in general, XL
Water penetrates into the PE insulation, and this water continuously condenses at localized high electric field areas such as foreign objects and voids due to the action of the electric field, and this condensed water is released into the XLPE insulation, causing water trees. It is believed that progress will be made.
この水トリー発生の直接な原因となる異物やボイド等へ
の水の凝縮は、ＸＬＰＥが無極性で水との親和性が小さ
いために生じ易いと考えられている。It is thought that condensation of water into foreign objects, voids, etc., which is a direct cause of water tree generation, is likely to occur because XLPE is nonpolar and has a low affinity for water.
そこで、水トリー発生を抑止するため、ＸＬＰＥに親和
性の極性基を導入したポリマーや化合物を添加する方法
が数多く提案され、また、一方で、ポリエチレンをシラ
ンカップリング剤でグラフト化した組成物が良好な耐水
トリー性を呈することから、このシランカップリング剤
による架橋方法も提案されている。Therefore, in order to suppress the occurrence of water tree, many methods have been proposed to add polymers or compounds into which affinity polar groups have been introduced to XLPE. A crosslinking method using this silane coupling agent has also been proposed because it exhibits good water resistance.
〈発明が解決しようとする問題点〉
しかしながら、従来のシランカップリング剤による架橋
方法というのは、一般に、上記シランカップリング剤に
よりポリエチレンのシラングラフト化ポリエチレンを作
り、この際、少々の有機過酸化物からなる架橋剤（シラ
ングラフト化ポリエチレン１００重量部に対して、０．
２重量部程度）等を添加して、ゲル分率を約４０％程度
とし、その後、この組成物にシラノール縮合触媒、例え
ばジブチルチンジラウレート（ＤＢＶＤＬ）等を添加し
て、押し出し、最終的な架橋（ゲル分率、約８０％以上
）は水の寄与による水架橋によっている。<Problems to be Solved by the Invention> However, in the conventional crosslinking method using a silane coupling agent, silane-grafted polyethylene is made from polyethylene using the above-mentioned silane coupling agent, and at this time, a small amount of organic peroxide is added to the polyethylene. A cross-linking agent consisting of silane-grafted polyethylene (0.
After that, a silanol condensation catalyst such as dibutyltin dilaurate (DBVDL) is added to this composition, and extrusion is carried out for final crosslinking. (Gel fraction, about 80% or more) is due to water crosslinking due to the contribution of water.
従って、この架橋方法の場合、水の拡散が架橋速度の律
速となり、通常、ポリエチレン中への水の拡散は、温水
処理やスチーム処理を施したとしても遅く、一般的に言
って、５ｍｍ厚さ程度の絶縁体層では、数日〜１０日間
前後の架橋時間が必要とされている。このため、現段階
では、ケーブルを例に取った場合、薄肉のものに限って
使用されているのが実情である。Therefore, in the case of this crosslinking method, the diffusion of water is the rate limiting factor for the crosslinking rate, and normally, the diffusion of water into polyethylene is slow even if hot water treatment or steam treatment is applied. An insulator layer of about 100 to 100 days requires crosslinking time of several days to about 10 days. For this reason, at present, when taking cables as an example, the reality is that only thin cables are used.
そこで、本発明者等が種々の検討を行ったところ、グラ
フト化したシラングラフト化ポリエチレンの場合であっ
ても、通常の架橋方法と同様、相当量の有機過酸化物架
橋剤（シラングラフト化ポリエチレン１００重量部に対
して、０．５〜４重量部程度）を添加すると、架橋スピ
ードが速くなることを、見出した。Therefore, the present inventors conducted various studies and found that even in the case of grafted silane-grafted polyethylene, a considerable amount of organic peroxide cross-linking agent (silane-grafted polyethylene It has been found that the crosslinking speed is increased by adding about 0.5 to 4 parts by weight per 100 parts by weight.
本発明は、このような観点に立ってなされたものであり
、耐水トリー性が良好で、かつ厚肉のものであっても容
易に架橋できる絶縁組成物、およびこれを用いた電カケ
ープルを得ることを目的とする。The present invention has been made from this point of view, and provides an insulating composition that has good water resistance and can be easily crosslinked even if it is thick, and an electrical cable using the same. The purpose is to
〈問題点を解決するための手段及びその作用〉か＼る目
的を達成する本発明の絶縁組成物は、低密度ポリエチレ
ンをシランカップリング剤でグラフト化させたシラング
ラフト化ポリエチレン１００重量部に、有機過酸化物架
橋剤を０．５〜４重量部添加して架橋させた組成物であ
り、また、本発明のケーブルは、この絶縁組成物を絶縁
体としたケーブルである。The insulating composition of the present invention which achieves the object of <Means for solving the problems and their effects> consists of 100 parts by weight of silane-grafted polyethylene, which is obtained by grafting low-density polyethylene with a silane coupling agent; The composition is crosslinked by adding 0.5 to 4 parts by weight of an organic peroxide crosslinking agent, and the cable of the present invention is a cable using this insulating composition as an insulator.
ここで、用いるシランカップリング剤としては、有機シ
ランのものが好ましく、例えば、一般式、ＲＲ′Ｓ ｉ
Ｙｚ （式中、Ｒはオレフィン性不飽和の１価の炭
化水素基またはハイドロカーボンオキシ基、各Ｙは加水
分解し得る有機基であり、Ｒ′は基Ｒまたは基Ｙである
）で表されるシランが挙げられる。具体的商品としては
、トーレシリコーン社製のＶＴＭＯ３（ビニルトリメト
キシシラン）、ＶＴＥＯ３（ビニルトリエトキシシラン
）等がある。そして、ポリエチレン１００重量部に対し
て、１〜３重量部程度添加するとよい。Here, the silane coupling agent used is preferably an organic silane, for example, the general formula RR'S i
Yz (wherein R is an olefinically unsaturated monovalent hydrocarbon group or a hydrocarbonoxy group, each Y is a hydrolyzable organic group, and R' is a group R or a group Y) Examples include silane. Specific products include VTMO3 (vinyltrimethoxysilane) and VTEO3 (vinyltriethoxysilane) manufactured by Toray Silicone. It is preferable to add about 1 to 3 parts by weight per 100 parts by weight of polyethylene.
また、本発明で使用する有機過酸化物の架橋剤としては
、ジクミルパーオキサイド（ＤＣＰ）、２．５−ジブチ
ル−２，５−ジ（ｔ−ブチルパーオキシ）ヘキシン−３
等が挙げられる。そして、その添加量としては、上記シ
ランカップリング剤によりグラフト化されたシラングラ
フト化ポリエチレン１００重量部に対して、０．５〜４
重量部を添加する必要がある。なぜならば、０．５重量
部未満では、必要とされる十分な架橋度が得られず、ま
た、４重量部を越えると、混練中にゲル化が進み、押出
時、スコーチが発生し易くなる等して、取り扱いが困難
になるからである。Further, as the organic peroxide crosslinking agent used in the present invention, dicumyl peroxide (DCP), 2,5-dibutyl-2,5-di(t-butylperoxy)hexyne-3
etc. The amount added is 0.5 to 4 parts by weight per 100 parts by weight of the silane-grafted polyethylene grafted with the silane coupling agent.
It is necessary to add parts by weight. This is because if it is less than 0.5 parts by weight, the required degree of crosslinking cannot be obtained, and if it exceeds 4 parts by weight, gelation will progress during kneading and scorch will easily occur during extrusion. This is because handling becomes difficult.
また、本発明では、老化防止剤、例えば、４゜４′−チ
オビス（６−ｔ−ブチル）−３−メチルフェノール）、
２．４−ビス−（ｎ−オチルチオ）−６−（４−ヒドロ
キシ−３，５−ジーも−ブチルアニリノ）−１，３，５
−トリアジン等を添加するとよい。In addition, in the present invention, anti-aging agents, such as 4゜4'-thiobis(6-t-butyl)-3-methylphenol),
2.4-bis-(n-othylthio)-6-(4-hydroxy-3,5-di-butylanilino)-1,3,5
- It is advisable to add triazine or the like.
なお、本発明の組成物には、さらに通常必要により添加
される添加剤、例えば、ステアリン酸亜鉛、パラフィン
等の滑剤等を適宜添加することができる。The composition of the present invention may further contain additives that are normally added as needed, such as lubricants such as zinc stearate and paraffin.
上記配合からなる本発明の絶縁組成物の製法は、特に限
定されないが、例えば、低密度ポリエチレンにシランカ
ップリング剤、少量の有機過酸化物架橋剤および老化防
止剤を配合し、１８０°Ｃで２分間程加熱してシラング
ラフト化ポリエチレンのペレットを作り、この後、この
ペレットに再度、相当量の有機過酸化物架橋剤をロール
混練や７０〜８０°Ｃでの含浸によって添加し、通常の
架橋ポリエチレンの場合と同様、窒素（Ｎ２）ガス中で
乾式架橋させて行う。The method for producing the insulating composition of the present invention consisting of the above formulation is not particularly limited, but for example, a silane coupling agent, a small amount of an organic peroxide crosslinking agent and an anti-aging agent are blended with low density polyethylene, and the mixture is heated at 180°C. After heating for about 2 minutes to form pellets of silane-grafted polyethylene, a considerable amount of organic peroxide cross-linking agent is added to the pellets again by roll kneading or impregnation at 70-80°C, and then As in the case of crosslinked polyethylene, dry crosslinking is carried out in nitrogen (N2) gas.
このグラフト化処理後の再度、有機過酸化物系架橋剤の
添加により、通常のポリエチレン架橋と同等の架橋スピ
ードで十分な厚肉の絶縁組成物が得られる。勿論、グラ
フト化処理により良好な耐水トリー性が得られる。By adding the organic peroxide crosslinking agent again after this grafting treatment, a sufficiently thick insulating composition can be obtained at a crosslinking speed equivalent to that of ordinary polyethylene crosslinking. Of course, good water resistance can be obtained by the grafting treatment.
この絶縁組成物を、押出等によりケーブルコアに絶縁体
として被覆すれば、目的とする電カケープルが得られる
。By coating the cable core as an insulator with this insulating composition by extrusion or the like, the desired electric cable can be obtained.
〈実施例〉
第１表に示した配合により、本発明に係る絶縁組成物（
実施例）と従来例になる絶縁組成物（比較例１．２）を
作成し、ケーブルの絶縁体として押出成形した。<Example> The insulating composition according to the present invention (
Examples) and conventional insulation compositions (Comparative Examples 1.2) were prepared and extruded as cable insulators.
なお、試作ケーブルは、導体断面積１００ｍｍ２、絶縁
体厚９ｍｍ、内部半導電層及び外部半導電層を有する３
層構造からなり、外部シースを省略したものである。The prototype cable has a conductor cross-sectional area of 100 mm2, an insulator thickness of 9 mm, and an inner semiconducting layer and an outer semiconducting layer.
It has a layered structure, and the external sheath is omitted.
また、上記の各組成物の作成において、比較例１の組成
物は、通常の架橋ポリエチレンであり、窒素（Ｎ２）ガ
ス中で乾式架橋させたものである。Furthermore, in the preparation of each of the above compositions, the composition of Comparative Example 1 was made of ordinary crosslinked polyethylene, which was dry crosslinked in nitrogen (N2) gas.
比較例２の組成物は、同表の配合物を１８０°Ｃで約２
分間加熱し、シランクラフト化ポリエチレンを作った後
、ＤＢＶＤＬを添加して、ケーブル絶縁体として押し出
し、架橋は、水架橋として、温度５０°Ｃ１湿度９０％
の調湿ルーム中に１週間保存して行ったものである。本
発明実施例の組成物は、上記比較例２の場合と同様、同
表の配合物を１８０°Ｃで約２分間加熱し、シラングラ
フト化ポリエチレンをペレット状態に形成した後、ＤＣ
Ｐをロール混練で添加し、通常の架橋ポリエチレンと同
様、窒素（Ｎ２）ガス中で乾式架橋させたものである。The composition of Comparative Example 2 was prepared by combining the formulation in the same table at 180°C with a temperature of about 2
After heating for 1 minute to make silane-crafted polyethylene, DBVDL is added and extruded as a cable insulation. Crosslinking is performed as water crosslinking at a temperature of 50°C and a humidity of 90%.
The samples were stored in a humidity-controlled room for one week. As in the case of Comparative Example 2, the composition of the present invention example was prepared by heating the formulation shown in the same table at 180°C for about 2 minutes to form silane-grafted polyethylene into pellets, and then
P is added by roll kneading and dry crosslinked in nitrogen (N2) gas like normal crosslinked polyethylene.
そして、上記第１表の各組成物について、夫々の電気特
性（浸水課電試験によるＡＣ破壊値）、耐水トリー性（
発生数、長さ）、架橋度（ゲル分率）を測定したところ
、第２図に示した如き結果を得た。For each composition in Table 1 above, the respective electrical properties (AC breakdown value by water immersion electrification test), water resistance tree property (
The number of occurrences, length) and degree of crosslinking (gel fraction) were measured, and the results shown in FIG. 2 were obtained.
なお、浸水課電試験は、導体に水を注入した試料ケーブ
ルにおいて、７０°Ｃの温水中でＩＫＨｚ。In addition, the water immersion charging test was performed on a sample cable with water injected into the conductor at IKHz in warm water at 70°C.
３０Ｋｖの電圧を９０日間印加後、ＡＣ（５０Ｈ２）の
電圧を５ Ｋ ｖ ／ ３０分のステップアップの条件
で昇圧して破壊電圧を求めて行った。また、耐水トリー
性については、試験後のケーブルを解体し、絶縁体中の
耐水トリー発生数、長さを調べ、架橋度についても同様
にした調べた。After applying a voltage of 30 Kv for 90 days, the breakdown voltage was determined by increasing the AC (50H2) voltage under step-up conditions of 5 Kv/30 minutes. In addition, regarding water-resistant trees, the cables were disassembled after the test and the number and length of water-resistant trees in the insulator were investigated, and the degree of crosslinking was also investigated in the same manner.
上記の第２表から本発明実施別品の場合は、比較測高に
比べて、電気特性の低下もなく、耐水トリー性を良好で
、さらに絶縁体の内外部は勿論のこと中層部でも十分な
架橋度が得られていることが判る。As shown in Table 2 above, in the case of the separate product according to the present invention, there is no deterioration in electrical properties compared to the comparative height measurement, and the water resistance is good, and it is also sufficient not only for the inside and outside of the insulator but also for the middle layer. It can be seen that a high degree of crosslinking was obtained.
〈発明の効果〉
以上の説明から明らかなように本発明によれば、耐水ト
リー性が良好で、かつ厚肉のものであっても容易に架橋
できる絶縁組成物が得られる。また、この組成物をケー
ブルの絶縁体として用いることにより、優れた電カケー
プルを得ることができる。<Effects of the Invention> As is clear from the above description, according to the present invention, an insulating composition that has good water resistance and can be easily crosslinked even if it is thick is obtained. Moreover, by using this composition as an insulator for cables, excellent electric cables can be obtained.
特許出願人 藤倉電線株式会社 代理人弁理士 石戸谷 重徳 、二≧゛・、！ ＼−４、、・Patent applicant: Fujikura Electric Wire Co., Ltd. Representative patent attorney Shigenori Ishidoya, 2≧゛・,! \-4,,・
Claims (2)
ラフト化させたシラングラフト化ポリエチレン１００重
量部に、有機過酸化物架橋剤を０．５〜４重量部添加し
て架橋させた絶縁組成物。(1) An insulating composition prepared by adding 0.5 to 4 parts by weight of an organic peroxide crosslinking agent to 100 parts by weight of silane-grafted polyethylene, which is obtained by grafting low-density polyethylene with a silane coupling agent.
ケーブル。(2) A power cable using the insulating composition according to claim 1 as an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2441488A JPH01200511A (en) | 1988-02-04 | 1988-02-04 | Insulation composition and electric power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2441488A JPH01200511A (en) | 1988-02-04 | 1988-02-04 | Insulation composition and electric power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01200511A true JPH01200511A (en) | 1989-08-11 |
Family
ID=12137498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2441488A Pending JPH01200511A (en) | 1988-02-04 | 1988-02-04 | Insulation composition and electric power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01200511A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756108A (en) * | 2013-12-10 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | Anti-cracking toughness polyethylene electric cable material and preparation method thereof |
| CN103756107A (en) * | 2013-12-10 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | Modified polyethylene insulation electric cable material and preparation method thereof |
| CN104151694A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | Electric arc flashover-resistant ADSS (all-dielectric self-supporting) cable jacket material |
| JP2017502105A (en) * | 2013-11-25 | 2017-01-19 | ダウ グローバル テクノロジーズ エルエルシー | Water crosslinkable and peroxide crosslinkable polymer compositions |
-
1988
- 1988-02-04 JP JP2441488A patent/JPH01200511A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017502105A (en) * | 2013-11-25 | 2017-01-19 | ダウ グローバル テクノロジーズ エルエルシー | Water crosslinkable and peroxide crosslinkable polymer compositions |
| CN103756108A (en) * | 2013-12-10 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | Anti-cracking toughness polyethylene electric cable material and preparation method thereof |
| CN103756107A (en) * | 2013-12-10 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | Modified polyethylene insulation electric cable material and preparation method thereof |
| CN104151694A (en) * | 2014-08-29 | 2014-11-19 | 上海至正道化高分子材料股份有限公司 | Electric arc flashover-resistant ADSS (all-dielectric self-supporting) cable jacket material |
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